HTC Sensation review

A hotly anticipated smartphone with a 1.2GHz dual-core processor, a "Super" 4.3-inch screen, and a manufacturer-skinned version of Android 2.3 -- we must be talking about the Samsung Galaxy S II, right? Not on this occasion, squire. Today we're taking a gander at HTC's Sensation, a handset that's just begun shipping in Europe under a short-term Vodafone exclusive and which should be making its way to T-Mobile in the USA early next month. By beating its stablemate the EVO 3D and Moto's Droid X2 to the market, the Sensation becomes the world's first 4.3-inch smartphone with qHD resolution, while also serving as the debut phone for HTC's Watch movie streaming service and Sense 3.0 UI customizations. That leaves us with an abundance of newness to review, so what are we waiting for?

HTC Sensation unboxing and hands-on

Hardware

Before delving into the minutiae of the Sensation's construction, let's take a moment to address its most outstanding physical asset: it feels small. 4.3-inch smartphones, starting with HTC's own HD2, have always been impressive beasts, but beasts is what they were -- ungainly, crude, and occasionally harder to handle than an angry carp. Not so with the Sensation. This handset is only 6mm taller, a single millimeter wider, and -- at 11.3mm -- actually slightly thinner than the 4-inch HTC Incredible S. Putting aside the measuring tape and grappling with the pair confirms what those numbers suggest: the 4.3-inch Sensation is nigh indistinguishable from its more modest family mate.

That's been achieved with a shrinking of the top and bottom bezels framing the screen and few other changes. You'll still find an extra-large volume rocker on the Sensation's left side, as you would on the Incredible S, accompanied by a micro-USB input a little further down. The bottom of each phone is home to a microphone and a notch for opening up the back cover, the right sides are left barren, and the tops feature headphone jacks and power / lock buttons. Also functionally identical are the rear layouts, with an 8 megapixel autofocus camera sat next to a dual LED flash and a single loudspeaker grille. All these design similarities are hardly coincidental, HTC sees that arrangement and styling as a winning combination and we have to agree.

The Sensation is a simple and untainted joy in the hand. Its 148g (5.22 ounce) weight is perfectly balanced, the curvature that starts at the sides and rolls all the way through the back is spot on, and there are almost no issues of fit and finish. Almost. Our review handset had a small crevice in its lower left side that allowed the backlight intended for the capacitive Android keys to leak out. This is a problem that will only matter to you if you're actively looking for it, but it does detract from the phone's otherwise sterling build quality.

Praise is due for the aluminum frame that HTC has wrapped around the sides, back, and even a small portion of the Sensation's front. It's rigid, shaped from a single slab of metal, and makes this a sturdy and creak-free handset. A pair of soft-touch plastic inserts take up a third of the rear cover each, with the upper one protruding a little bit in front of the camera lens and LEDs, lending them an extra bit of protection. You should be mindful that that also creates a niche where dust and debris can snuggle up. Speaking of snuggling, the very design of the Sensation's wraparound enclosure makes it a bit of a pest to pry open. Nothing quite so maddening as what HTC served up with the Inspire 4G (then again, what is?), but this is definitely not the case for you if you're inclined to perform quick and dirty SIM swaps between your phones. A microSD card slot also lurks under the Sensation's skin, and it's filled by default with an 8GB unit, which augments the 1GB of onboard storage. It's accessible without removing the battery from its silo, though the SIM card slot is not.

We'd be remiss not to compare the Sensation against the most clear and present danger to its quest for smartphone supremacy: Samsung's Galaxy S II. The latter is clearly a stupendously thin device, whose admittedly plastic construction left us with few complaints. Still, when faced with the question of which phone we'd trust to last us the full 24 months of a typical contract, we have to hand it to the Sensation. It isn't flawless, but its aluminum shell is sturdier, and we found its curves more ergonomic and natural, which should help make accidental drops that extra bit less likely.

Battery life

As is true of all battery-powered devices, your time away from the wall plug with the Sensation will be determined by what you use the handset for. We found recording 1080p video to be particularly taxing, closely followed by shooting still photographs. An hour's walk through London intermixing the two ate up a third of the Sensation's 1520mAh charge. Angry Birds gaming sessions, on the other hand, are handled with no greater difficulty than casual web browsing -- neither caused any significant dent in our battery reserves. What really stands out about the Sensation is its energy frugality when left to idle. We left our Gmail and Twitter updates to push themselves to the phone as and when they were available, but in spite of that activity the Sensation barely uses any juice at all when not in our hands and doing awesome, futuristic things. This is a major asset that turns it into more than just a plaything for power users. Folks that don't care to recharge their phone every single night can buy the Sensation safe in the knowledge that it'll last for a good couple of days of casual use, while those who want to squeeze all the power out of it can do their thing as well, accepting the relevant diminution in endurance.

We'll get to the Sensation's performance further on in the review, but suffice it to say that what you're getting here is an extremely versatile handset. Neither the 4.3-inch screen size nor the dual-core processor pose challenges to using the Sensation as your daily phone, but they do expand on what you can do with it when the fancy strikes you. The Galaxy S II is again the obvious competitor here, and it too acquitted itself well in our battery tests. Our testing, however, showed the Sensation to be more efficient when not actively in use -- which, even for intensive smartphone users, tends to be the majority of the time -- granting it a higher ceiling for battery life. The Super LCD on board also seems to be consuming energy with restraint, making that frankly average 1520mAh cell look very good indeed. If battery life is an important consideration in your spec-for-spec comparison with the Galaxy S II, score this as a win for the Sensation.

Display

In our review of the Galaxy S II, we opined that though its display was of superlative quality, its pixel density left a little something to be desired. The Sensation gives us that extra flourish with a 960 x 540 resolution (35 percent more pixels than on Samsung's 800 x 480 panel) on a Super LCD screen that fails to match the vivid output or viewing angles of its Super AMOLED Plus competitor, but at least maintains a similarly hyperbolic naming scheme. There are two significant advantages to moving up to qHD resolution. The first and most tangible is that you get more of everything: Gmail displays more missives, the browser fits more of your favorite blog's content at a time, the calendar includes more agenda items, and you get to see more of your contacts without having to scroll (11 on the Sensation versus 9 on the WVGA Incredible S screen). Additionally, though the user interface sticks to the standard 16 grid slots for your icons and widgets, having them all in higher resolution lends an extra layer of visual polish, if nothing else. The camera and gallery apps benefit from having more dots to display your compositions and resulting images.

Video is where the second big advantage of qHD emerges. 960 x 540 pixels provide a native 16:9 screen ratio and thereby sends those pesky black bars off into oblivion. You'll be able to watch both content you've downloaded and recorded yourself in full screen without resorting to any compromises such as zooming the picture in and cutting off the widest portions. And if you're really a lover of the widescreen experience, there's an option in the camera app to let you shoot 16:9 as well. That'll help keep your content optimized for a vast range of desktop monitors and the great majority of HDTVs. Small considerations, perhaps, but good to have nonetheless.

In terms of the Sensation's output quality, it merits noting that in spite of its 4.3-inch display bearing the same branding as the 4- and 3.7-inch ones on the Incredible S and Desire S, it is not up to the same standard. Viewing angles are the first giveaway, as they're nowhere near as expansive on the Sensation. At 45 degrees away from center, the Sensation's picture washes out, whereas the Incredible S maintains color fidelity until laid almost flat. Additionally, the smaller handset is brighter and better saturated than its newcomer buddy. None of this is to say that HTC has installed a poor LCD on the Sensation, we'd just refrain from calling it a Super one. As to our running tally against the Galaxy S II, the Sensation wins out on resolution, but loses by a big margin when it comes to quality and the sheer feeling of luxury that the GSII provides.

Oh, we almost forgot to mention the peculiar contouring that HTC has applied to the edges of the glass screen. They're ever so slightly higher than the rest of display, with a tiny little slope lending the whole screen a subtle concavity. As a result, most of the glass never makes contact with surfaces when the phone is laid face down, adding a smidgen extra protection against scuffs and the like. Not that you're terribly likely to mar this expansive screen, which has been given the Gorilla Glass treatment just like the rest of HTC's recent line. Needless to say, that's a marked improvement from last year's Nexus One, which HTC had the gall to claim wasn't supposed to go into pockets.

Reception, earpiece and loudspeaker

Calls on the Sensation were for the most part clear and competently handled. HTC has an extra microphone on the back of the handset, whose job we presume is to analyze external noise and nullify its effects. In voice calls, the other party heard us even on a busy street where we had our own struggles keeping up with what they were saying to us. The earpiece is neither excellent nor poor, it just does the job. Its position at the very top of the phone means that you'll generally place the sound source up above (rather than next to) your ear when taking a call, but then it's not like HTC had a lot of flexibility as to where to put it. Guess this is just the price we have to pay for the aggressively thin bezels on this handset.

Moseying through our usual testing area revealed no aberrant behavior from the Sensation's 2G and 3G radios and reception was on par with what we would generally expect. This phone can actually reach HSPA+ speeds of 14.4Mbps down and 5.76Mbps up (hence why it'll be known as the Sensation 4G in the US), but we didn't have the requisite network to test it out. The Sensation's antenna is built into the plastic parts of its rear cover, a recurring trend in HTC's recent handsets.

As to aural performance, the loudspeaker on the back does a decent job and output to headphones is particularly pleasing. The solo speaker doesn't lose much when the Sensation is put down on a flat surface and though a stray finger pressed against its opening will muffle a large proportion of the sound, those aforementioned microphone holes help to leak it out of the case. Overall, it's an aspect of the phone that we consider simply satisfactory, it's not going to be the thing that sways your decision in either direction. HTC's bundled earphones are attractively styled, but generally disappointing. They were a poor fit for us, offered next to no sound isolation (an asset when trying to listen to music on the move), and their in-line remote control is the very definition of cheap plastic. The latter's also susceptible to recognizing accidental bumps as input, adding to our impression that you should keep the headset in its wrapping, just in case you decide to resell the handset down the line -- yes, the maintenance of resale value is the best thing we can say about these earphones.

If you plug in your own set of ear blasters, on the other hand, you'll be treated to some very nice output indeed. SRS virtual surround sound enhancements baked into the phone make a tangible difference by widening the sound stage and creating a more intimate feel to whatever you're listening to. For a smartphone that aspires to woo customers with top tier multimedia performance, getting audio right is a big deal and the Sensation thankfully delivers. Top marks on that, HTC, but if you can't bundle good headphones of your own, just don't bother next time. We'll take stickers instead.

Camera

HTC Sensation camera samples

The unnecessarily capitalized feature that HTC is introducing with the Sensation's camera software is a little something dubbed Instant Capture. It's not a setting that you can toggle; HTC rightly presumes that you'll always want to minimize lag between telling the phone to snap a photo and the actual capture, and it works almost quickly enough to justify its name. Low light conditions will slow you down some as the autofocus isn't as fast, plus the flash might need to pop on and do its job, but responsiveness on the whole is very impressive indeed. We thought the Galaxy S II was fast to shoot and reload, but the Sensation is at least as quick.

Also helpful is a little preview window in the bottom left corner (when the phone's held in landscape mode), which shows the last photograph taken. This isn't a novelty for Android, but it wasn't available on the recent Incredible S and Desire S and makes particularly good use of the increased visual detail afforded by the size and pixel density of the Sensation's display. You can obtain enough information about a captured image from it to disable full screen image review after snapping a shot, leaving the camera free and ready to record another masterpiece. A sweet shrinking animation transitions taken photos into the smaller window and gives a visual clue to newbies that they'll find their photographic archives by tapping on it.

Image quality, the meat and potatoes of camera work, is usually high on the Sensation, though some software irregularities do undermine the evident strength of the hardware on board. What you see above is a 100 percent crop from this image, exhibiting a great deal of sharpness given the full 8 megapixel size at which the Sensation records its images, but also an unsightly blotch of blurriness right in the middle of the flower. The latter is caused by HTC's penchant for applying noise-reducing blur -- essentially melting neighboring areas of like color into one so as to reduce graininess.

Even with the company's auto-enhance option turned off (our whole sample gallery was shot this way), the software will automatically choose where to blur things out to deliver more visually appealing imagery at lower resolutions. That's the key, really. Looking at the pictures in our sample gallery, you'll be hard pressed to pick out any softness, because they've been shrunken down to a mere 800 x 600 pixels in size, a situation that's mirrored when viewing pictures on the phone, so you can definitely see HTC's motivation for optimizing its software to make things look good at lower resolutions. It's just that photography purists (and just people who expect 8 megapixels to mean 8 megapixels) will scoff at the idea that full-size quality should be sacrified for improvements at lower resolution.

Another issue caused by the software is that it'll occassionally get its color balance pretty badly wrong. Perusing our gallery, you'll find London buses looking slightly pink and black fencing shading toward a dark (deep?) purple. Thankfully, there's a decent selection of tweaks you can play around with, including exposure, contrast, saturation, sharpness, and a set of white balance presets.

The predictably limited dynamic range of the Sensation's camera does mean that in high contrast situations you'll end up with either blown-out skies or overcast landscapes, depending on what you choose to focus on and how the camera meters the available light, but that needn't be a tragedy -- it can lead to more artsy and interesting imagery. Overall, we reckon the Sensation is equipped with a mighty fine imager that might require you to be just a little more hands-on in controlling its settings in order to obtain the best results.

We must commend HTC for the intelligently designed dual LED flash. It's bright enough to illuminate group portrait shots and yet subtle enough not to whitewash a subject that's placed immediately in front of the camera lens. The front-facing VGA camera, on the other hand, didn't impress us much. It produced murky and grainy results and continues to be a tool primarily intended for video calls.

Video recording on the Sensation is simply effortless. Thirty frames of glorious 1080p can be filled each second and it seems to be done with utter ease. The camcorder's ability to keep up with motion on screen is markedly superior to what we're used to as well. There's a fluidity to the Sensation's output that's rare to find. Make no mistake about it, folks, this is where your dual-core processor will run circles, squares, and trapezoids around the competition. Though performance is sublime, we must note that actual visual quality of the Sensation's video leaves some room for improvement. HTC again seems to be fiddling with the recording -- by blurring some parts and sharpening others for a more uniform look -- which can sometimes deliver unnatural-looking results.

Sound is recorded in stereo, another feather in the Sensation's multimedia hat, though we found the phone unusually prone to picking up wind noise. In our estimation, this is owing to the position of the microphone used for voice calls, which unfortunately gets exposed directly to oncoming wind when the phone's held horizontally to shoot movies. Aside from that, quality of sound recording was pretty much middle of the road; it's certainly a far cry from the tinny stuff the HTC Flyer recently treated us to. If the two vids above aren't enough for you, you'll find a couple more samples here and here.

Software

Many of you might gaze upon the HTC Sensation and see your ideal hacking phone -- tons of hardware potential, great ergonomics, and an almost spotless bill of physical health. All you need now is a nice community-built ROM for it and you'll be flying... but oh wait, that's right, HTC developed a weird allergy to custom Android ROM installations this year and has been locking down the bootloaders on its 2011 phones to prevent such chicanery. Company CEO Peter Chou announced yesterday that this unpopular policy will be done away with in the future -- a welcome decision that may be enacted with retroactive effect and lead to the full unleashing of the Sensation -- but as it stands today, this lovely new handset's only option is HTC's Sense-tweaked Android 2.3.3 install. You can polish it up by overlaying custom app launchers or UI skins from the Android Market, but customization purists will have to look elsewhere.

Sense 3.0

With such an introduction, you might surmise that HTC's latest version of Sense, 3.0, hasn't treated us quite the way it should and you'd be right. It isn't that the user experience suffers from any glaring flaws or omissions -- it is generally smooth, responsive and pleasing to the eye -- but we're left disappointed by the indolent pace of innovation that HTC has exhibited with this supposedly major new release. Unfortunately, the Sense 3.0 tweaks have proven to be mostly superficial and there's little in the way of added functionality over and above what you can obtain on a Gingerbread-sporting Incredible S.

HTC Sensation software

Let's start off with the bright spots. The overhauled lockscreen is by far and away the biggest and handiest improvement in the latest Sense. It now offers four customizable app shortcuts, which can be dragged into a so-called activation ring and thereby unlock the phone straight into the app. Above the shortcuts, you can have some spectacularly animated weather animations signifying the current weather, or stock updates, or a floating array of your pictures, which too can be dragged into that ring for a closer look. On the whole, it takes the previously dormant, borderline nuisance of a screen and it turns it into a much more dynamic and useful part of the user interface. We like the way that selecting an app shortcut creates an outline of it inside the activation ring, which in itself moves up from the bottom of the screen and closer to the app. These subtle visual clues, along with other hints and animations, help newcomers to smartphones find their way around with little difficulty.

There's no denying the fact that, superficially, Sense 3.0 is a clear step ahead of its predecessors. Navigation between homescreens is executed with a three-dimensional animation, implying a carousel arrangement, and there are tons of little visual tweaks suggesting depth in, around, and behind UI elements. Moving left of the left-most homescreen sends you to the right-most one, while skipping in a single direction too quickly pulls your view back, exposes the full carousel, and gives it a rapid spin in that direction. Unlocking the phone in the conventional way spins your first homescreen into view in a similar fashion. This is all well and good, and it certainly makes for a good exhibition of the underlying graphical prowess, but it's purely cosmetic. There's no utilitarian reason for why you'd want to send your homescreens into a washing machine cycle -- that actually takes control of the phone away from you, whereas we'd have thought the whole point of customizing Android was to improve and enhance it, not make it more unwieldy.

HTC's obsession with weather follows the same path. The Sensation comes with a set of splendid visuals for the common weather conditions, which are actually accompanied by fitting sound effects as well (yes, there are small audio recordings for sunny, windy, and rainy weather). Alas, those get annoying very quickly indeed and you'll soon find yourself trying to either turn them off or disposing with the offending widgets. HTC's weather widget will allow you to mute the sound, but the expansive animations aren't optional. For all its glitz and glamor, the weather app on the Sensation is actually rather dumb. It allows you to cycle through a number of cities while still on the homescreen, but it's pretty much a matter of luck whether tapping on your selected city will bring its weather up. Sometimes the app reloads itself and sends you to the correct metropolis, but on other occasions it just loads up the last city you were on. Ergo, tapping on Paris doesn't guarantee you won't get sent to Tokyo. Similarly, attempting to see weather for upcoming days by tapping on them on the home widget just brings you to conditions for the current day.

Overall, the new Sense UI is designed to make a great first impression, but scratch below the surface and you'll find little substance. We still aren't great fans of the onscreen keyboard, in spite of the extra room on this larger-display handset, and though HTC explicitly promised to improve its input prediction algorithms, we weren't struck by any great improvements there either. Precise text selection and cursor placements are also uniquely challenging on HTC devices, with the execution being arguably worse than on the default Android Gingerbread software. Finally, the move to a more graphically intensive UI does ocassionally take its toll on the phone's otherwise exemplary responsiveness, with detectable traces of lag cropping up here and there.

Having said that, let's also give an approving nod to HTC's integration of a Quick Settings menu in the drop-down Android menu (it sits alongside the usual Notifications area) and the nice app switcher that appears when you hold down the Home button. Moreover, the company does a good job of juggling resource use by background tasks, a valuable trait. The reason we're not more enthused about these items is that they're also present and accounted for in the company's other Gingerbread handsets, making the Sensation just another in a succession of phones rather than the singular and outstanding device that its former codename of Pyramid suggested.

Performance

We've danced around and hinted at the Sensation's performance long enough, now how about we address it head on? As already pointed out in the camera section, this handset's biggest struggle is in finding things that can challenge it. Dragging the camera icon into the unlocking ring on the lockscreen and taking your first snapshot is a spectacularly quick affair, certainly faster than on the 1.5GHz Flyer, HTC's only other Sense 3.0 device so far. Google Maps and the web browser are almost dripping with lubricant, they're so slick. Flash videos embedded online load up as quickly on the Sensation as we've seen on any other smartphone. The limits to this handset's abilities are found when trying to play back 1080p Flash video -- it turns into a slideshow -- but 720p is no problem at all.

HTC Watch, the company's newly launched online movie store / rental kiosk, is available on the Sensation, having made its debut on the Flyer. It works on a progressive download basis that's practically indiscernible from streaming, you just end up with the trailer, TV episode, or movie fully downloaded on your phone after you've watched it. There's a small buffering delay before you can start playback, but again, that's part for the streaming course. Although we aren't sure of the actual resolution at which movies are played on the Sensation, they look (and yes, we've been saving this adjective for just the right moment) sensational. That 16:9 screen ratio and the processing power within the phone pair up to deliver a supreme movie-watching experience. If you weren't convinced smartphones were big or good enough to make films enjoyable, you owe it to yourself to check out what HTC has to offer here.

App launching in general is nearly instantaneous. HTC claims opening apps is now twice as fast as on its previous handsets, but we ran a little side-by-side test with the Sensation and Incredible S and would argue that "twice" is an overly ambitious thing to say. The fact is that a number of recent Android phones, including those from HTC's own stable, have reached a very high level of responsiveness, so differentiating from them is hard. The Sensation definitely comes out ahead of all bar the Galaxy S II, just don't expect it to be a mindblowing improvement on the currently high standard.

Naturally, you'll be wanting some benchmarks to go with your serving of hands-on impressions. We ran the Sensation through the usual gauntlet, however our usual warning about screen resolution affecting scores must be reiterated here. Quadrant's 3D graphics tests are done at native resolution, which as we mentioned above is a 35 percent more intensive workload for the qHD Sensation than it is for, say, the WVGA Galaxy S II. Don't be shocked, therefore, to hear that the Sensation's scores coalesced around 2,000. Linpack typically gave us around 46MFLOPS, matching the Galaxy S II. Other graphical tests were hamstrung by a 60fps cap, giving us average scores of 58fps in Neocore and 42fps in Nenamark. Needless to say, the full power of that Adreno 220 GPU will need some nice and intensive new games to push it to its limits. It'll still be a good long while, however, before there's anything on Android capable of choking up the hardware inside the Sensation.

Wrap-up

The HTC Sensation is an extremely accomplished device, but there's no getting around the feeling that it underwhelms. While it is indeed a dual-core speed demon like the Samsung Galaxy S II, HTC's latest doesn't exhibit quite the same level of UI responsiveness and is furthermore saddled with a signed bootloader that prevents users from improving things themselves. Our biggest issue is with Sense, whose fancy new graphics and improved lockscreen utility can't hide the fact that the core UX hasn't materially changed from the days of the Hero.

In terms of design language, HTC is a monoglot and proud of it. The Sensation doesn't break with the company's established styling, yet its subtle physical refinements add up to make it a veritable pleasure to hold and to operate. Combining these excellent ergonomics with the phone's superior battery efficiency and generous qHD display resolution makes the Sensation a formidable foe for Samsung's celebrated new flagship. Given the choice between the two, we'd opt for the Galaxy S II for its brilliant display and snappier performance, but that's just a matter of preference. Ultimately, you'll have to decide what it is you value most in your Android superphone and pick the one that fits those needs best.

Samsung Galaxy S II review

If you don't already know all about the Samsung Galaxy S II, where have you been the past two months? The successor to one of the most popular Android handsets to date carries a burden of expectation almost as sizable as its 4.3-inch Super AMOLED Plus screen. It promises to be thinner, lighter, and faster than the Galaxy S that preceded it, while garnishing Android 2.3.3 with a set of TouchWiz customizations that might actually enhance, rather than hinder, the user experience. As such, the Galaxy S II earns Samsung full marks for ambition, but does this slinky new smartphone live up to its interstellar hype? The answer, as always, can be found after the break.

Samsung Galaxy S II review

Hardware

The Samsung Galaxy S II is 8.49mm (0.33 inches) thick. We whipped out a ruler and checked, it's true. Admittedly, that measurement expands a little at the handset's bottom, where a curvy bump houses its loudspeaker, and around the camera compartment, which protrudes ever so slightly from the rest of the body, but even at its thickest point, this phone doesn't allow itself to go beyond the 1cm mark. Given the veritable spec sheet overload that Samsung has included within the Galaxy S II, we consider its thin profile a stunning feat of engineering. In terms of the pursuit of the absolute slimmest device, NEC's MEDIAS N-04C is still the champ at 7.7mm, but global audiences should feel comfortable in replacing the Sony Ericsson Xperia Arc, which measures 8.7mm at its thinnest point, with the Galaxy S II for their benchmark slim device.



More importantly, Samsung's new 4.3-inch handset feels better in the hand than the Arc, thanks to its intelligently curved sides that provide a comfortable and assured grip. The textured rear cover also feels good to the touch, and should withstand nicks and scratches a lot better than the original Galaxy S' backplate, though don't expect its featherlight construction to contribute much to the phone's overall rigidity. That will be provided by the still-mostly-plastic frame surrounding the phone's screen. We found little cause to doubt the Galaxy S II's durability, though we certainly wouldn't go recommending it as the phone for the builder in your life. There's a minuscule crevice between the handset's frame and screen that looks prone to gathering dust if exposed to dirty environments, and in spite of the generally reassuring build quality, the Galaxy S II is still made out of plastic rather than something more robust like HTC or Nokia's all-aluminum cases.

Returning to the screen, it's fronted by one continuous sheet of glass, which protects a 4.3-inch Super AMOLED Plus display along with a batch of sensors and a front-facing camera at the top, and two capacitive Android keys at the bottom. The earpiece and Home button are the only disruptions to the sleek glass surface. Whatever coating Samsung has applied to the Galaxy S II's screen works very well, as it resists smudges and fingerprint marks much better than the average smartphone. A volume rocker and a power / lock key each take up one side of the GSII, with a 3.5mm headphone jack adorning its top and a micro-USB charging / data port at the bottom. That's it, no frills, no extras, and -- to the dismay of some -- no dedicated camera shutter button. At least the controls you do get all work very well. The side-mounted buttons do their job without fuss and touchscreen responsiveness is impeccable. The Menu and Back keys are purely capacitive, whereas the Home button is, well, an actual button -- it requires you to physically depress it in order to register input. That distinction may feel a bit awkward at first, but we rather enjoyed it. It meant accidental key taps were all but impossible to achieve and gave a more definitive nature to punching the Home key, which somehow felt appropriate given the fact it yanks you out of whatever you're doing and back to the homescreen.

Display

The Galaxy S II's screen is nothing short of spectacular. Blacks are impenetrable, colors pop out at you, and viewing angles are supreme. This would usually be the part where we'd point out that qHD (960 x 540) resolution is fast becoming the norm among top-tier smartphones and that the GSII's 800 x 480 is therefore a bit behind the curve, but frankly, we don't care. With a screen as beautiful as this, such things pale into insignificance. And we use that verb advisedly -- whereas the majority of LCDs quickly lose their luster when you tilt them away from center, color saturation and vibrancy on the Galaxy S II remain undiminished. It is only at extreme angles that you'll notice some discoloration, but that's only if you're looking for it and takes nothing away from the awe-inspiring experience of simply using this device.



Whether you're pushing it to its limits with movie watching or just tamely browsing the web, the Super AMOLED Plus panel inside the Galaxy S II never fails to remind you that it's simply better than almost everything else that's out there. For an instructive example of the contrast on offer here, take a look at our recent post regarding the LG Optimus Big's upcoming launch in Korea. The pattern on that handset's white back was so subtle on our desktop monitor that we completely missed it, whereas when we looked at the same image on the GSII, it looked clear as day. Maybe that doesn't speak too highly of the monitors we're working with, but it underlines the supremacy of the display Samsung has squeezed into the Galaxy S II.



We'd even go so far as to say it's better than the iPhone 4's screen, purely because, at 4.3 inches, it gives us so much more room to work with. It's almost impossible to split the two up in terms of quality of output, they're both top notch. Notably, however, that was also true of Samsung's original Super AMOLED display, the one that graced the 4-inch Galaxy S, and by now you must be wondering if there's actually anything significant enough in the new S-AMOLED technology to justify appending that "Plus" to its name. The short answer is yes, and it's all in the pixels.



The one major downside to the original Super AMOLED panel was to be found in its PenTile matrix subpixel arrangement. It employed an RGBG pattern, wherein you got two green subpixels for every pair of red and blue ones, but the overall resolution was counted on the basis of green subpixels. Ergo, a PenTile 800 x 480 resolution wasn't as rich at the subpixel level as your standard RGB screen (768,000 versus 1,152,000), which resulted in slightly grainier images than would otherwise have been the case. Well, that "otherwise" scenario is now with us, because Samsung has switched to a Real-Stripe RGB array in the 4.3-inch Galaxy S II, which means it packs the full 1.152 megasubpixel count and, as we've already noted, the display looks delectable for it. A lesser criticism of the original Galaxy S was that its colors were a little blown out and oversaturated, but that's once again rendered moot on the successor device -- a software setting called Background effect allows you to tweak saturation, so if you're feeling a little melancholy, you can tone down the intensity of your handset's colors to match your ennui. Basically, if we haven't made it clear already, this is everything that Super AMOLED was, minus the bad parts and plus an extra .3 inches in real estate. A triumph.



Okay, there is one mildly irritating aspect about the Galaxy S II's screen and that's the auto-brightness -- it tends to hunt around for the correct setting and occasionally makes jarring jumps between darker and brighter values. Whether that's down to the ambient light sensor or the software reading data from it isn't all that important, what's relevant is that we found ourselves more comfortable with a human helming the brightness controls.

Battery life

The story of the Galaxy S II's battery life cannot be told without returning to its luscious screen. Being an OLED panel, the 4.3-inch display here doesn't use one single backlight as LCD screens do, and instead only illuminates the pixels that are needed to actively display content. This is the reason why it can generate truer blacks than any backlit panel, but it also permits the user to optimize battery life by doing such things as switching to a darker wallpaper or reading ebooks against a black background. We didn't actually bother with such tweaks, we were too busy exploring every one of the myriad features on this phone, but the option's there as an extra dimension of obsessive control if you care for it. As to the Galaxy S II's actual endurance, we found it highly competitive with the latest batch of Android phones. After 20 hours, half of which were filled with the above tinkering and exploration, we managed to drag the Galaxy S II down to 15 percent of its original charge. This was with our usual push notification suppliers, Gmail and Twitter, running in the background and while constantly connected to our WiFi network.



Using the Android System Info app (available for free on the Android Market), we found confirmation that the Galaxy S II is indeed running a 1.2GHz ARMv7 dual-core processor, but more importantly, we also dug up a breakdown of how often the SOC was reaching that max speed. Only 9.2 percent of our use harnessed the full 1.2GHz, with Samsung wisely downclocking its chip to as low as 200MHz when the phone's idling (that accounted for 46 percent of the Galaxy S II's uptime). What's impressive about this is that we never hit upon any performance bumps to indicate that we were running at slower speeds. Clearly, Samsung's power management system is doing its job well. In summary, we expect you'll be able to get a decent couple of days' regular use out of the Galaxy S II -- our experience with it came close to what we got out of HTC's Incredible S and Desire S that recently crossed our review bench -- though processor-intensive activities like HD video playback will eat into that, as will the variability of 3G coverage. What we can say with absolute certainty is that the Galaxy S II is no slouch when put against its contemporaries, and it also marks a definite improvement in longevity over the original Galaxy S.

Loudspeaker / earpiece

The loudspeaker is surprisingly passable, hell, it's more than passable. We're probably being swayed by the gorgeous screen on this phone, but playing back video without relying on headphones feels just fine, unlike the usual grinding chore that it is on most current phones. That being said, Tinie Tempah's Pass Out -- a song that starts out dominated by deep bass -- sounds like a hilarious remix of the original on the GSII owing to the speaker's inability to dip down low enough to sound out the track's bassline. Bass deprivation is a typical shortcoming of smartphones, which isn't looking likely to find a fix any time soon. You still won't be forced to abandon your dubstep addiction while on the move, however, as Samsung bundles a solid pair of in-ear headphones that do a very respectable job of both isolating external noise and delivering audio to your cranium. Including an in-line mic that doubles as a music play / pause button is no bad thing either. We'd be remiss not to point out that the Galaxy S II's loudspeaker is positioned rather poorly -- it and the two slits cut into the phone's rump for its output face the rear. Laying the handset down on a flat surface immediately alters the sound and a stray finger - a single fleshy finger -- can mute almost everything.



The earpiece performed as close to the middle of the road as you can get. Calls sounded good on our end and equally so on the other side. We had a couple of garbled moments during one conversation, but that's more likely due to network performance than some fault on the Galaxy S II. As to the network itself, the GSII exhibited no reception issues or aberrant behavior, though we weren't able to check out its rated 21.1Mbps HSPA+ speeds on our UK carrier.

Camera

Samsung eschews the default Gingerbread camera app for its own effort, which comes with a neat slice of customization. The left menu column gives you three shortcut slots for the functions you consider most relevant to your photographic exploits. By default, two of them are populated with a button to flip between the rear-facing 8 megapixel and front-facing 2 megapixel camera and another one for controlling the flash, but you can do whatever you fancy. Resolution, ISO, scene and shooting modes, or adjustments like white balance, contrast, metering, and after-effects can all be included in there. And if you consider different things important when in video mode, that's no problem, because that retains its own set of shortcuts separate from the stills mode. It's a fully realized suite of options, even if most users will neglect the left side and just keep bashing the capture key on the right.

When they do so, they'll be treated to some excellent results. The camera compartment on the back of the Galaxy S II justifies its size (it's still tiny, it just happens to protrude a little bit from the ultrathin GSII body) with the collection of great detail in nearly every shot. What most impressed us about this sensor is that images remained relatively sharp at full resolution -- such as the one you see above, it's a 100 percent crop from an 8 megapixel capture -- with Samsung feeling confident enough in the quality of its hardware to apply almost no noise-reducing blur under default settings. That does permit for graininess to sneak into some images, but on the whole, we're looking at one of the finest smartphone camera sensors around. Closeup shots are handled very well too, in spite of the lack of a dedicated macro mode (Update: There's a Macro setting under the Focus mode menu; thanks, Josh!). The flash is a typically overpowered LED unit, though we were impressed to see the Galaxy S II use it while focusing on a nearby object but not while shooting -- had it been used in the shot, the flash would've whitewashed the entire composition, so it's good to see the software showing a timely bit of restraint.



The only real issue we encountered was that that the GSII's sensor has a predictably narrow dynamic range, meaning that photographs with high contrast between dark and well-lit areas end up with either deep shadows or blown out highlights, depending on which you opt to focus on. Then again, that can lead to some highly artistic / moody shots, so we're not too sure this is a major downer. A limitation, sure, but not something that will seriously impact your enjoyment of snapping pics with this phone.

Samsung Galaxy S II camera samples

As to video, it too looks crisp and sharp, though the ever-present rolling shutter effect is very much in evidence when there's rapid motion on screen (see the bus passing by in the sample below). Provided you don't insist on panning around too quickly or recording hound races from the sidelines, that shouldn't pose much of a problem. There's little in the way of image stabilization too, but again, so long as your ambitions stretch no further than casual HD video, the Galaxy S II should prove more than sufficient.

Even when pushed to record at 1080p, the Galaxy S II showed no sign of slowdown or even any processing lag. Speed of operation, both in stills and video, is as fast as we've seen yet. The time taken to enter the camera app, process one image and be ready for the next, and to switch between camera and camcorder modes was in all cases supreme. We consider that a big part of a successful camera's mechanics -- being able and ready to respond to the user immediately instead of making him -- so the Galaxy S II scores another big tick from us. Samsung also provides a Photo editor app that lets you tweak, crop and stylize your imagery. It covers all the basics and throws in a few fun extras for those who like to experiment.

Software

General responsiveness is absolutely exemplary. If you've read what we had to say about the G2x and the way it simply flies through homescreens, menus and applications, you'll know that we have a high bar for Android performance already set, but the Galaxy S II beats it anyway. There's simply never been an Android handset this smooth and this fluid in its operation. Nothing phases the GSII, and the only time we got it to show any performance dropoff was in enacting a pinching gesture on the home screen to bring up an Exposé-like overview of all seven homescreens. That's seven fully loaded-out homescreens with information updating live (multiple clocks plus news and weather feeds) and the only thing that recipe for memory overload produced was a slight stutter in animating the zooming effect. There's just no getting around the extravagant amounts of power this device has and we can't wait to see Samsung jam one of these Exynos chips inside a future tablet or two.

We know you like your benchmarks, so we might as well hit you with those all-important numbers. Do take heed, however, that graphical tests such as those in Quadrant and Neocore perform at the phone's native resolution, which will bias results in favor of lower-res screens -- so don't take what you see as a conclusive performance comparison, use it just as an indicator. With that out of the way, here are the scores: Quadrant gave us results in the 3,000 to 3,400 range, Linpack produced an average of 47 MFLOPS, and Nenamark and Neocore both brought in a 59.8fps average that was limited by a 60fps software cap on the phone (a suspicion that was further confirmed by running Fps2D and seeing the same behavior). It's a shame that we weren't able to properly quantify the true maximum capability of the Exynos dual-core chip and Mali-400 graphics within, but that Quadrant score can be taken as highly representative of the chasm that exists between the Galaxy S II and smartphones that have come before it. It really is that much better. Put simply, this is the most powerful mobile handset we've yet tested.

Browser

Browser performance is superb in terms of speed but a little troubled when it comes to rendering. In our use of the Galaxy S II, we were consistently met with pronounced aliasing when viewing webpages from a more distant, zoomed-out view. There were no issues in terms of the structure of the page, all sites organized themselves exactly as their makers designed them, but pulling out for an overview brought out the jaggy lines and generally looked unattractive. That's not, however, a functional flaw, it's just a superficial scratch on a muscly brawler. In terms of actually navigating webpages, the Galaxy S II is outstanding. Page scrolling is so smooth it borders on slippery, pinch-to-zoom is flawless, and re-orienting the screen from portrait to landscape and back is done in a flash.



Oh, did we say Flash? One entirely aberrant aspect of our review handset was that we couldn't get it to play back any in-browser Flash content. Instead, it encouraged us to upgrade our Flash Player. We did so, downloading and installing Flash Player 10.2, but still had no joy. This seems like an unhappy fluke and we'll see how Samsung responds to our queries on the matter.



Update: Thanks to our reader David, we've now figured out the root of this little problemo. Turns out the browser required us to tick an "enable plugins" box to get Flash running. We did so and, sure enough, in-browser Flash was a go. Frame rates have been consistently high across multiple websites and videos, which is in keeping with the rest of the Galaxy S II's performance.

TouchWiz 4.0

Android should already be a familiar friend (sometimes foe) to most of you, so we'll just go ahead and dive right into what Samsung has built atop the Android 2.3.3 base on the Galaxy S II with its latest set of OS customizations, dubbed TouchWiz 4.0. For a deeper exploration of what's new and improved in the Gingerbread iteration of Google's operating system, check out our Nexus S review.

Samsung Galaxy S II user interface

We start at the inevitable beginning, namely the lock screen. The Galaxy S II's lock screen won't offer the same hotbed of activity that you might find in HTC's new Sense 3.0, but it does come with some pretty awesome functionality of its own. Missed calls and unread messages become little tabs on the side of your locked GSII, which you may swipe into view and thereby unlock the phone straight into the message or call that needs your attention. It's slick, as fast as everything else on this speedster of a phone, and it adds real utility to your day-to-day use. Speaking of calls, your options when receiving one are to to pick up, hang up, or reject with a text message -- with a slide-up menu offering you the most common apologetic missives to send out. When the shoe's on the other foot and you're seeking to reach out to your nearest and dearest, swiping right on their name in the Contacts list will initiate a call, while swiping left will start the composition of a text. Each contact card also comes with a history of communications between you and the other party, providing gentle reminders of when you last checked in with your neglected friends. The Galaxy S could do some of this fancy stuff too, but that shouldn't take away from the fact that we're looking at genuinely useful additions that enhance the Android user experience.



Long-pressing the Home button brings you to an app switcher exhibiting six of your most recently active apps, with a Task Manager loitering with malicious intent beneath them. Entering that Manager lets you view active tasks along with their RAM and CPU cycle consumption, with an option to kill them if you feel it necessary, and to then flush from the phone's memory any remnants of their operation. Not that you'll really need to be micromanaging either of those things with 1GB of RAM and oodles of processing power, but still, it's a useful feature to have. Also available is a Program Monitor widget for your homescreen that shows the number of active applications at any given time and links you into the same Task Manager menu. Looking at its fluctuating count, we could see the phone was selectively deactivating some apps as we increased the number of open programs. That never led to us losing data or having to restart apps, so whatever resource management is kicking in looks to be doing its job judiciously and with precision.

Samsung also throws a trifecta of motion sensor-assisted functions into the Galaxy S II. The first is something you might be familiar from HTC's Sense: flipping the phone to face the floor mutes all sounds, whether they be incoming calls or media playing on the device. Unlike HTC's implementation, however -- which had an unfortunate tendency to be hit and miss in its recognition -- Samsung's "Turn over" feature works without hitch each and every time. We're big fans of this seemingly benign option because it combines the physical gesture of turning the sound source away from you with the software response of switching all audio off. It feels natural and can be seen as a representation of where phones may and ought to be headed, to a place where they predict and judge your intent using a higher level of intelligence than the usual impassive expectation of conventional input.



The other two motion controls are truly novel and, we suspect, will be quite neat party tricks for Galaxy S II users to show off. Tilt-zoom gives you a new way to zoom within the browser and picture gallery app, whereby you tilt the phone up to enlarge an image or down to shrink it. This is activated by placing two fingers on the screen simultaneously and comes with a sensitivity adjustment for users to tailor it to their whims. We don't know if we'd ever come to use tilt-zoom over the tried and tested pinch-to-zoom functionality -- which is naturally also present here -- but the Galaxy S II makes zooming of any kind a pleasure to behold. As already outlined above, this phone just executes zooms and animations exactly as they were meant to be done. Having dealt with tilting, Samsung also gives us a panning motion function, which comes in handy when reorganizing your homescreens. There are seven of them in total and any grizzled Android user will know the chore of having to transition through multiple screens to get an icon positioned just right. Samsung's bright idea here has been to use the accelerometer to recognize the phone's lateral motion and react to it by moving you through the homescreens. This motion-aided panning is only accessible when you're rearranging your widgets or shortcuts, but once you understand that a 90-degree turn will jump you three homescreens in a given direction, navigation can be made delightfully quick.

The Galaxy S II's onscreen keyboard is terrific, allowing us to get up to a fast typing speed within almost no time at all. Samsung needn't feel too smug about it, though, as this is an almost identical recreation of the default Gingerbread button pad. The Korean company has opted to include a dedicated button for voice input in the place of the comma, which is now relegated to hanging out with the rest of the punctuation crew in the secondary keyboard mode for symbol / numerical input. We're not thrilled by this change, as we use commas a hell of a lot more than voice input, but we recognize the reason why Samsung did it -- two of its pre-launch ads for the Galaxy S II were focused on the use of its Voice Talk feature to perform effortless handsfree communication. Only problem is that the reality of using the Vlingo-powered Voice Talk is more an exercise in frustration than anything else. It's also been given priority by dedicating a double-tap of the Home button to it (from wherever you are on the phone), but once you actually get into the app itself, you clash with slow (purely because of the software) operation, a consistent failure to properly recognize common words, and a generally unrewarding user experience. It's a gimmick, pure and simple. Whatever value you extract from using it will be be the result of sheer stubbornness on your part rather than good software design.



Alas, we can't say anything much more positive about Samsung's set of Hubs on the phone. There are Game, Music, Readers, and Social Hubs, however we found everything other than the ebook reader a waste of time. The Game Hub doesn't yet offer anything that differentiates it from simply searching out games on the Android Market, the Music Hub tries to sell you stuff without providing a compelling reason to jump into yet another online music store, and the Social Hub tries to convince you that you need it to organize all your social feeds, messages, and email. Such centralized control might have been handy earlier on in Android's development, but the native Gmail and Gtalk apps have evolved to provide trouble-free use, while the Twitter client for the platform is now more than mature enough to handle itself. What we're looking at, then, is redundant functionality. The Readers Hub, as we say, is the one that we can see ourselves actually using, mostly owing to the inclusion of the Kobo e-reader software, though it too seems geared more toward selling you stuff than actually serving users' needs.



We'll finish off with a quick run through the rest of Samsung's additions to the Android experience. Sharing over DLNA is made stupidly simple with the AllShare app, and if you're on a Windows PC, you can just browse through the device's stored music, video and pictures and access content on the fly. The whole process is as seamless as it is wireless. The persistent "dock" at the bottom of the homescreen is not customizable (Update: Turns out that you can tweak the first three icons in the bottom dock -- this can be done by accessing the apps menu and choosing to edit its arrangement; thanks, Rein!). The Applications menu isn't the best we've ever seen either. Don't get us wrong, its navigation exhibits the same stupendous speed and responsiveness as the rest of the phone, but automated reorganization into alphabetical or date order isn't available. You can only switch to a list view or manually rejig the way the apps are listed on each page. Screenshots of whatever the Galaxy S II is displaying can be taken by pressing the Home and power buttons simultaneously. It's not yet a common feature among Android devices, but we'd like it to become one. We're also happy to see Samsung maintain its long-held tradition of providing some of the weirdest ringtones around, the vast majority of which seem wholly unsuitable for anyone but the most obnoxious of users. Nevertheless, we did manage to unearth a rare gem in the Cassiopeia tone, which sounds like a slowed-down version of the Metal Gear Solid codec chime.

Wrap-up

For a handset with such a broad range of standout features and specs, the Galaxy S II is remarkably easy to summarize. It's the best Android smartphone yet, but more importantly, it might well be the best smartphone, period. Of course, a 4.3-inch screen size won't suit everyone, no matter how stupendously thin the device that carries it may be, and we also can't say for sure that the Galaxy S II would justify a long-term iOS user foresaking his investment into one ecosystem and making the leap to another. Nonetheless, if you're asking us what smartphone to buy today, unconstrained by such externalities, the Galaxy S II would be the clear choice. Sometimes it's just as simple as that.